For the input-output matrix A, and the output matrix X, of three industries, find the amounts consumed internally by the production process.

A= 0.10 0.15 0.10, X= 500,
0.20 0.05 0.08, 800,
0.04 0.06 0.02, 400, My answer is 210,172,76. is this right I'm not sure. Thanks for any help given.